US3626756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flowmeter
Assignee: CONFLOW Ltd
•
Filing: 1970-01-26
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Granted: 1971-12-14
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Expires: 1990-01-26
Abstract
Abstract A FLOWMETER IS PROVIDED WITH A SPRING URGING THE VALVE MEMBER TOWARDS A SEATING AT THE SMALLER INLET END OF A FLOW PASSAGE, SO AS TO BE SUITABLE FOR USE IN ANY DISPOSITION OR FOR MEASURING FLOW UNDER HIGH PRESSURES, AND THE VALVE MEMBER IS CARRIED BY A PLUNGER INCLUDING OPPOSED MAGNETS BY MEANS OF WHICH A POINTER IS MOVED OVER A SCALE WITHOUT ANY MECHANICAL CONNECTION WITH THE VALVE MEMBER, THEREBY ENABLING THE POINTER AND SCALE TO HAVE A MOUNTING ROTATABLE ABOUT THE AXIS OF THE PLUNGER TO BRING THE SCALE TO A CONVENIENT POSITION FOR READING REGARDLESS OF THE DISPOSITION OF THE FLOWMETER.
Inventors
- 👤 Cyril Marshall
- 👤 Dennis A Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:33
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/22; G01F1/24; G01F1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |